Precipitable water vapor and 212 GHz atmospheric optical depth correlation at El Leoncito site
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Artigo
Date
2018
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Journal of Atmospheric and Solar-Terrestrial Physics
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6
Authors
Cassiano M.M.
Cornejo Espinoza D.
Raulin J.-P.
Gimenez de Castro C.G.
Cornejo Espinoza D.
Raulin J.-P.
Gimenez de Castro C.G.
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Abstract
© 2018 Elsevier LtdTime series of precipitable water vapor (PWV) and 212 GHz atmospheric optical depth were obtained in CASLEO (Complejo Astronómico El Leoncito), at El Leoncito site, Argentinean Andes, for the period of 2011–2013. The 212 GHz atmospheric optical depth data were derived from measurements by the Solar Submillimeter Telescope (SST) and the PWV data were obtained by the AERONET CASLEO station. The correlation between PWV and 212 GHz optical depth was analyzed for the whole period, when both parameters were simultaneously available. A very significant correlation was observed. Similar correlation was found when data were analyzed year by year. The results indicate that the correlation of PWV versus 212 GHz optical depth could be used as an indirect estimation method for PWV, when direct measurements are not available.
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Keywords
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AERONET , Atmospheric optical depth , Direct measurement , Estimation methods , Optical depth , Precipitable water vapor , Submillimeter radiation , Submillimeters